Carbureting apparatus for internal-combustion engines.



l. E. SYKORA.

,CARBURETING APPARATUS FOR INTERNAL CIVIBUSTION ENGINES.

APPLICATION FILED FEB. I6. |9I7l callyl and as an p may be of thestandard or any desired make,

oFFrojE.

CABBUBETING APPARATUS non `1,1 t.rnnivnr;jcsfnzm1:rs:bien ENGINES.

To all whom'z't may concern: l l. Be it known that I, JOHN SYKORA',citizen ofthe 4United ]States, residingv at` Windeln, in the county ofCottonwood and State of Minnesota, have inventedv certain new and usefulImprovements in Carbureti'ng Apparatus for Internal-Combustion Engines;and I do hereby declare'the following to be a full, clear, and exactdescription of the invention, such as will enable .others skilled in theart to-which it appertains 'to make and use the same.

My invention has for its object to'provide a carburetlng apparatus forproducing hydro-carbon vapor from a. heavy hydro-carbon oil, such askerosene, for use as a fuel medium for internal combustion engines.

To the above end, the invention consists of the novel'devicesandcombinations of devices hereinafter described and dened in theclaims. V

The drawing, which is partly in section and partly in elevation,'illustrates in .a single view thev invention incorporated in thecarburetor and the exhaust pipe of an internal combustion engine. 5

The numeral 1 indicates, diagrammatientirety, a carbureter, whicli andthe numeral 2 indicates a fuel intake pipe leading from said carbureterto an in.l ternalA combustion engine, only the exhaust pipe 3of which isshown. Gasolene, or other.I light hydro-carbon oil, is conveyedthrou' ha pipe ,4, from any suitable source-of 'supp y, 5.

such as astorage tank,'to the carbureter 1.

A valve casing 5 connects the pipe 4 to the a lever 18, having at itsshort end a needle carbureter 1, and has mounted therein, a three-wayvalve of well known construction.

The improved carbureting apparatus comprises a pipe l7, a container 8for heavy hydro-carbon oil kerosene, and a jacket 9, all of which areconcentrically arranged around the zaxis of the exhaust pipe 3. hecontainer 8, as shown, is in the form of a cylindrical shell, spacedapart from the pipe 7 and having an open top and a cast bottom with aflanged internally threaded axialn opening into which the receiving endof the pipe 7 1s screwed. The improved apparatus 1s 1nterposed in theex- Z, hereinafter referred to as w open V Speeication ofiIietter'sPatent.' Patented Mar. 11, 1.919. M 'plication led February 1 6, 1917.`Serial No. 149,009.`

haust pipe 3 and its pipes 7 forman intermediate section ofsaid exhaustpipe. The delivery end of the receiving section of the exhaust pipe v3is screwed into the cast bottom of the container 8.

The jacket 9 is ofcylindrical form, with an open bottom and spaced apartfrom the container 8 to afford an air intake conduit c 10, whichcompletely surrounds said vcontainer. A cap 11 closes the upper end ofthe jacket 9 and-1s provided with a flanged axial opening into which thedelivery ends of the pipe arel screwed. The receiving end of thedelivery section 'of the Oexhaust pipe 3 is screwed into the flan edaxial openlng of the cap 11'. This cap 11 1s spacedabove the container8, to afford a mixing chamber 12.

- vA'short fluid fuel supply pipe 13, extends radially through thejacket 9 and connects `the container 8, slightly above its bottom,

with thevalve casing 5. In one position ofv the'` three-way valve 6, thegasolene supply pipe'4 will be open the pipe 13 closed; and in anotherposition to the carbureter 1, and

of said valve,lthe pipe 13 will be open to the j carbureter, and thepipe 4 closed. A combined air' and vapor mixing chamber 12 witI thecarbureter 1.

The kerosene Z is fed under pressure, by gravit or otherwise, through asupply pipe 115.lea ing from a suitable source of supply, A.such as astorage tank, not shown, to the con- 'f talner 8. Interposedin thekerosene supply pipe 15, close to` the jacket 9, is a bowl '16, A avinga port'17, into which the delivery end section of the pipe 15 opens'.

of the receiving fulcrumed in the bowl 16 ,is

Intermediatelyl lto close the port 17 .I Obviously, when theV keroseneZin the container 8 drops below a predetermined elevation, the float 12will ipe 14 connects'the theneedle valve 19 to admit a furtherl supplyofkerosene and then close the same when the kerosene in the containerhas again reachedsaid predetermined elevation.

The operationof the improved carbureting apparatus may bel brieiiydescribed as follows; In starting the engine, the valve 6 is set toclose the pipe 13, and open the gasolene supplyy pipe 4. This valve 6may be operated by any suitable connections, not shown, which preferablyextend to the-instrument board, or within easy reach of the driver.Under the suction stroke of the engine, a supply of gasolene `is drawninto the carbureter 1 through the pipe 4, "and a supply of air is drawninto said carbureter through the air conduit 10, mixing chamber 12 andpipe 14. As the pipe 7 becomes heated, 'by the exhaust passingtherethrough, the intake of air while passing through the conduit 10 isalso heated, thereby greatly increas- 'ing the efficiency of the fuelcharge. The

kerosene Z in the container 8 also becomes heated by its direct contactwith the pipe 7, and the vapor rising therefrom commingles with the airin the mixing chamber 12, and is drawn into the carbureter 1, throughthe pipe 14. After the kerosene Z has become sufficiently hot tovaporize, the valve 6 is operated to close the gasolene'supply pipe 4and open the pipe 13 to permit the kerosene to be drawn, under thesuction stroke of the engine, from the container 8 through the Apipe 13,valve casing 5 and into the carbureter 1. With the valve 6 thus set, the

engine continues to run on a fuel chargeof kerosene.

The above described invention, while extremely simple and easy to applyto carbureters of various different makes and to the exhaust pipe of anexplosive engine, has in actual usage proven highly efficient fOr-thepurpose had in view.

,While the invention is shown in connection with a vertical exhaustpipe,'it is, of course, understood that the same 'may be used inconnection with a horizontally disposed exhaust pipe orone that is setat an angle with respect thereto.

What I claim is:

1. The combination-with the carbureter and exhaust pipe of an internalcombustion engine, of a heavy hydro-carbon oil container surrounding theexhaust pipe, a mixing chamber also surrounding the exhaust pipe andinto Whichthe container opens, an air supply 4conduit leading to themixing chamber, a vapor conduit leading from the mixing chamberto theIcarburetena liquid fuel intake pipe leading from the container,

a light hydro-carbon oil supply pipe, and means for connecting eithersaid intake pipe 0or supply p ipe to the carbureter,lat will.

2. The combination with the carbureter' and exhaust pipe of an internalcombustion engine, of inner and outer jackets surrounding the exhaustpipe, said tw'o jacketsbeing closed at opposite ends, the closed end ofthe outer jacket being extended outward of the open end of the innerjacket to afford a mixair intake conduit, respectively, a vapor conduitleading from themixing chamber to the carbureter, a liquid fuel intakepipe leading from the container to the carbureter, and a liquid fuelsupply pipe leading to the Container.

3. The combination with the carbureter and the exhaust pipe of aninternal combustion engine, of a hydro-carbon oilcontainer surroundingthe exhaust pipe, a mixing chamber into which the container opens, anair supply conduit leading to the mixing chamber, an air and vaporconduit leading from the mixing chamber to the carbureter, a liquid fuelintake pipe leading from the container to the carbureter, and a floatcon- .trolled supply pipe leading to the container.

4. The combination with the carbureter and the exhaust pipe of aninternal combustion engine, of a hydro-carbon oil container surroundingthe exhaust pipe, a mixing chamber into which the container opens, anair supply conduit leading to the mixing chamber, an air and vaporconduit leading from the mixing chamber to the carbureter, a liquid fuelintake pipe leading from the container, a supplypipe, and a three-wayvalve connecting the liquid fuel intake pipe and the supply pipe to thecarbureter.

5. The combination with a carbureter and the exhaust pipe of an internalcombustion engine, of a heavy-carbon oil container surrounding theexhaust pipe and having an open top, a supply pipe leading to thecontainer, a float control in the supply pipe for keeping the oil in thecontainer at a predetermined elevation, a jacket surrounding the'container and spaced apart therefrom to the container to afford a mixingchamber, an

air and'vapor conduit leading from the mixing chamber to the carbureter,a liquid fuel supply pipe leading from the container, a lighthydro-carbon oil supply pipe, and a three-way 4valve connecting the twolast noted pipes to the carbureter.

6. They combination with the carbureter and exhaust pipe of an internalcombustion engine, of inner' and outer jackets surrounding the exhaustpipe, said two jackets being closed at opposite ends, the closed end ofthe outer jacket being extended outward of the open end of the innerjacket to afford a mixing chamber, said inner and outer jackets beingspaced apart from each other and the latter from the exhaust pipe toafford ,therebetween a heavy hydro-carbon oil container i and an airintake conduit,v respectively, a,

7' hydro-carbon 011 supply pipe, and means for connecting either saidintake pipe or supply pipe to the carbureter, at will.

In testimony whereof I aHiX my signature in presence of two Witnesses.

JOHN E. SYKORA.

Witnesses:

WVJ. CLARK, ARTHUR J. KANE.

